Improvement in night-oaet



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JOHN H. LYNCH', OF BALTIMORE, MARYLAND',

` Letters Patent Np. 67,892, datednngust 2o, 1867.

IMPROVEMENT IN NIGHT-CART.

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TO ALL WHGM IT MAY CONCERN: A

Beit known that I, JOHN H. LYNCH, of the city and county of Baltimore,and State' of Maryland, have invented anew and useful improvedNight-Cart; and I do hereby declare the following to be a full, clear,and exact description of the same, suicient to enable one skilled in theart to which the invention appertains to make use of it, reference beinghad to the accompanying drawings, which form a part of thisspecification, and.

in which- Figure 1 is a perspective view.

Figure is a longitudinal vertical section on the line :v x, fig. 1. i

lThis Vnight-cart is so adjusted upon the axle as to be capable of beingtipped backward to discharge its contents at a rear opening when theshutter is opened. The door of the charging opening above as well. asthe shutter in the rear has packing-rings, which t their openingstightly, and they are held closed by lever and chain, or rack andpinion, I

In the drawings, A is. the box or body ofA the cart; B is the upperopening, through which the night-soil is emptied into the cart. This isclosed by the door C, which is hinged on the upper surface of the cart,and has an elastic packing, D, which, as the door is pressed into theopening, packs it water-tiglitand prevents the escape of the uid orgaseous contents ofthe box. The lid may be constructed as in the drawingin two sections, between which is fastened a thickness of India rubber,which projects beyond the margin of the wood, or it may be otherwiseattached; but it is important that the corners of the door be roundedoi`, so that it may more readily pack into the opening whenpressed-down. Above the door is a bar, E, which is pressed upon by thepivoted levers F, which are held down by the engagement-of thechain-hooks G with the eyeholts H. The shutter I in the rear is hungupon hinges to the rear of the cart, and is provided with a. packingmembrane, J, similar to that described as belonging to the door G on theupperv surface of the cart. The corners of the box are also rounded. Itis held close into the opening K by means of the bar L and theratchet-arms M, which are worked by the pinion Nland crank O, or by a.lever on the pinion-shaft, instead of the crank, if required. A ratchetwheel on the pinion-shaft is engaged by a pawl, and the closed positionof the door maintained. The pawl is lifted by crank P when it isnecessary to open the door. The cart is filled, as usual, at an openingabove, the rear shutter being closely fastened, the upper door is thentightly closed, and on arriving at the spot where the soil isdischarged, the cart-box is tipped back, and the shutter opened, whichdischarges the contents behind. The common practice is to upset the boxand discharge'the soil at the opening by which it was charged. Theplates,- R R are guides for the arms M, which may hie curved orstraight, the guide-plates being suitably arranged to meet the change.l

Having described my invention, what I claim therein as new, and desireto secure by Letters Patent, is-

1. The box A, provided at the rear with a. tight-fitting shutter, I,operated by means substantially as described.. v

2. The door C, with packing membrane and rounded corners, and securedsubstantially as described.

'JOHN H. LYNCH.v

Witnesses:

JOSEPH S. LYNCH, G. F. SABEL'.

